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