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