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