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