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