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