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