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