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