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