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