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