One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(6,9)(10,12)(14,16)(18,19)(21,22,25,26)(23,29,31,27)(24,28,33,34)(30,36,32,35)(13,14,17,16)(15,19,20,18)(22,26)(27,29)(28,34)(35,36)(1,2,4,3)(14,16)(18,19)(21,23)(22,27)(24,32)(25,31)(26,29)(28,36)(30,33)(34,35)(1,3,4,2)(5,6)(7,10)(8,9)(11,12)(13,15,17,20)(14,18,16,19)(21,22)(23,27)(24,28)(25,26)(29,31)(30,35)(32,36)(33,34)(5,7,8,11)(6,10,9,12)(13,16,17,14)(15,19,20,18)(21,24,25,33)(22,28,26,34)(23,30,31,32)(27,35,29,36)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.