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