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