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