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