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