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