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