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