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)(11,15)(12,16)(13,14)(17,18)(19,20)(21,22)(23,24)(25,26,31,30)(27,28,29,32)(2,4)(6,7)(10,14)(12,15)(18,22)(20,23)(25,27,31,29)(26,32,30,28)(17,18,21,22)(19,23,24,20)(25,28)(26,29)(27,30)(31,32)(1,3)(2,6)(4,7)(5,8)(9,11,13,16)(10,15,14,12)(17,19)(18,23)(20,22)(21,24)(25,29,31,27)(26,32,30,28)(1,4,5,2)(3,7,8,6)(9,12,13,15)(10,16,14,11)(17,20,21,23)(18,19,22,24)(25,30,31,26)(27,32,29,28)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.