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)(21,22,27,34,26,31,25,32)(23,33,36,28,30,29,35,24)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,23,26,30)(22,28,31,24)(25,36,27,35)(29,34,33,32)(2,4)(5,8,9,16)(6,11,12,20)(7,13,14,15)(10,17,18,19)(21,23)(22,29)(24,34)(25,35)(26,30)(27,36)(28,32)(31,33)(8,16)(11,20)(13,15)(17,19)(21,24,25,29,26,28,27,33)(22,30,32,36,31,23,34,35)(6,12)(7,14)(11,20)(13,15)(22,31)(23,30)(32,34)(35,36) 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.