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