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)(9,18)(10,13)(11,16)(15,20)(17,19)(22,26)(23,27)(28,31)(29,34)(30,33)(35,36)(1,2,4,3)(5,7)(6,11)(8,17)(9,15)(10,16)(12,20)(13,14)(18,19)(21,22,25,26)(23,27,30,33)(24,28,32,31)(29,34,36,35)(1,3,4,2)(21,23)(22,27)(24,29)(25,30)(26,33)(28,34)(31,35)(32,36)(5,8,10,9)(6,12,13,18)(7,15,16,17)(11,19,14,20)(21,24)(22,28)(23,29)(25,32)(26,31)(27,34)(30,36)(33,35)(5,9,10,8)(6,12,13,18)(7,15,16,17)(11,20,14,19)(21,22,25,26)(23,27,30,33)(24,31,32,28)(29,35,36,34)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.