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