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