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)(22,26)(23,29)(24,31)(27,30)(28,34)(32,35)(5,7,8,15,9,14,17,18)(6,10,11,13,12,19,16,20)(21,22,24,26,25,28,31,34)(23,30,29,36,32,27,35,33)(7,14)(10,19)(13,20)(15,18)(21,23,31,35,25,32,24,29)(22,27,34,36,28,30,26,33)(1,3,4,2)(22,28)(26,34)(27,30)(33,36)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.