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