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