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