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