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