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