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