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