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