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