Dryfit the pavers over the area to identify any cuts needed. Dryfitting requires laying the stones out along the width and height of the concrete pad without applying adhesive. Measure and mark each paver to be cut and cut the paver with a wet saw for masonry. These saws are available for rent from most hardware stores.
Mix mortar and water in a bucket to a consistency of peanut butter. Spread the wet mortar across the section for the first row of pavers using a notched trowel. Drag the notched edge of the trowel along the length of the section to create grooves in the mortar.
Lay the first row of pavers on top of the grooved mortar. Lay a level across the pavers to ensure they remain level and angled slightly away from the main structure. Tap the pavers with a rubber mallet to obtain the proper level and angle. Keep each paver pressed tightly against the adjacent pavers to limit the gaps between pavers.
Spread dry cement across the section for the second row of pavers to a thickness equalling the thickness of the mortar bed spread in Step 2. Drag the notched edge of the trowel over the section for the second row to create grooves in the dry cement. Lay the second row of pavers in the same manner as the first by checking the level and angle of each paver. Do not lay any pavers along the edge.
Repeat Step 4 for all additional rows excluding the edges.
Repeat Step 2 and 3 to lay pavers along the edges of the cement pad. The end result will be an outer row of pavers locked in place with mortar.
Pour concrete sand over the entire area and brush the sand into the grooves between the pavers with a broad-head broom. Wet the entire area down with a low-pressure water hose to rinse off excess sand while solidifying the sand and cement between and below the pavers.