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