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