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