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