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