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