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)(23,30,33,31)(24,34,29,26)(28,36,35,32)(5,7)(6,10)(8,15)(9,13)(11,19)(12,17)(14,16)(18,20)(21,23,27,33)(22,28,25,35)(24,30,29,31)(26,36,34,32)(2,4)(7,13)(10,17)(14,15)(18,19)(21,24)(22,26)(23,31)(25,34)(27,29)(28,32)(30,33)(35,36) involution — undirected(5,8,9,16)(6,11,12,20)(7,14,13,15)(10,18,17,19)(21,25,27,22)(23,28,33,35)(24,34,29,26)(30,36,31,32)(6,12)(10,17)(11,20)(18,19)(22,25)(24,29)(28,35)(30,31) 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.