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