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