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