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