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