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