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