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