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