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