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