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