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