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