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