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)(13,14,16,18)(15,17,19,20)(21,22)(23,32)(24,27)(25,31)(26,30)(28,34)(29,35)(33,36)(5,7)(6,10)(8,11)(9,12)(13,15,16,19)(14,17,18,20)(22,27)(23,33)(30,31)(34,35)(5,8,9,6)(7,11,12,10)(15,19)(17,20)(21,23,25,34,24,33,26,35)(22,28,30,32,27,29,31,36)(2,4)(7,12)(10,11)(21,23,25,34,24,33,26,35)(22,29,30,36,27,28,31,32)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.