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