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