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