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