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