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