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