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