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