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