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