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