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