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