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