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