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