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