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