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