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