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