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