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