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