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