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