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