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