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