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