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