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