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