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)(11,14)(12,15)(13,16)(17,18,22,26)(19,20,23,24)(21,25,31,32)(27,28,29,30)(1,3,5,8)(2,6,4,7)(9,11,14,10)(12,15,13,16)(17,19,22,23)(18,24,26,20)(21,29,31,27)(25,28,32,30)(9,12)(10,15)(11,16)(13,14)(17,20,23,26,22,24,19,18)(21,30,29,25,31,28,27,32)(1,4,5,2)(3,6,8,7)(9,13,14,12)(10,16,11,15)(17,21)(18,25)(19,27)(20,28)(22,31)(23,29)(24,30)(26,32)(10,11)(15,16)(17,19,22,23)(18,20,26,24)(21,29,31,27)(25,30,32,28)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.