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