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