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