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