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)(20,21)(22,24)(25,26,31,29)(27,32,30,28)(1,3,5,4)(2,6,7,8)(9,11)(10,14)(12,15)(13,16)(18,21)(19,24)(25,27,31,30)(26,32,29,28)(3,4)(6,8)(10,15)(11,16)(17,18,20,21)(19,22,24,23)(25,28)(26,30)(27,29)(31,32)(1,4,5,3)(2,6,7,8)(9,10)(11,12)(13,15)(14,16)(17,18)(19,22)(20,21)(23,24)(25,29,31,26)(27,32,30,28)(1,2)(3,8)(4,6)(5,7)(9,12)(10,11)(13,14)(15,16)(17,19,20,24)(18,22,21,23)(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.