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)(19,24)(20,21)(22,27)(23,25)(26,32)(28,31)(29,30)(1,3,6,5)(2,7,8,4)(10,13)(14,16)(17,19)(18,24)(20,27)(21,22)(23,28)(25,31)(26,29)(30,32)(2,8)(4,7)(9,10,12,13)(11,14,15,16)(18,25)(19,28)(21,32)(27,29)(2,8)(3,5)(11,15)(14,16)(17,20,23,26)(18,21,25,32)(19,29,28,27)(22,24,30,31)(1,4,6,7)(2,3,8,5)(9,10)(11,14)(12,13)(15,16)(17,21)(18,26)(19,30)(20,25)(22,28)(23,32)(24,27)(29,31)(1,5,6,3)(2,7,8,4)(9,11)(10,14)(12,15)(13,16)(17,22,23,30)(18,27,25,29)(19,21,28,32)(20,31,26,24)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.