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