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