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