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)(21,22,24,27)(23,29,31,36)(25,34,33,28)(26,35,30,32)(1,2)(3,4)(5,7)(6,10)(8,14)(9,15)(11,18)(12,13)(16,19)(17,20)(21,22)(23,30)(24,27)(25,28)(26,31)(29,35)(32,36)(33,34) involution — undirected(2,4)(21,23,25,32,24,31,33,35)(22,26,28,29,27,30,34,36)(5,8,9,17)(6,11,12,16)(7,14,15,20)(10,18,13,19)(22,27)(23,31)(28,34)(32,35)(2,4)(7,15)(10,13)(14,20)(18,19)(23,31)(26,30)(29,36)(32,35) 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.