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