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