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