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