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