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