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