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