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