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