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