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