One vertex per element, one color per generator, with an edge from x to x·s.
(13,14,17,20)(15,16,19,18)(21,22)(23,26)(24,27)(25,30)(28,33)(29,31)(32,35)(34,36)(1,2,4,3)(6,9)(10,12)(15,19)(16,18)(22,23)(24,31)(28,30)(32,36)(1,3,4,2)(5,6)(7,10)(8,9)(11,12)(13,15,17,19)(14,18,20,16)(21,23,26,22)(24,27,31,29)(25,30,33,28)(32,34,36,35)(5,7,8,11)(6,10,9,12)(13,16,17,18)(14,19,20,15)(21,24,26,31)(22,27,23,29)(25,32,33,36)(28,34,30,35)(21,25,26,33)(22,28,23,30)(24,32,31,36)(27,34,29,35)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.