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