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