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