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