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