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