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