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