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