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