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