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