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