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