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