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