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