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