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