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