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