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