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