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