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