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