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