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