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