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