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