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