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