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