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