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