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