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