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