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