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