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