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