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