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