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