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