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