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