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)(7,17,20,28,21,27,19,12)(8,13,23,31,24,32,25,30)(18,29,22,35,34,36,33,26)(5,7,10,19,11,21,9,20)(6,12,14,27,16,28,15,17)(8,22,23,34,24,33,25,18)(13,29,31,35,32,36,30,26)(2,4)(5,8)(6,13)(7,18)(9,23)(10,25)(11,24)(12,26)(14,30)(15,31)(16,32)(17,29)(19,33)(20,22)(21,34)(27,36)(28,35) involution — undirected(5,6)(7,12)(8,13)(9,15)(10,14)(11,16)(17,20)(18,26)(19,27)(21,28)(22,29)(23,31)(24,32)(25,30)(33,36)(34,35) 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.