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