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