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