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