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)(11,15)(12,13)(14,16)(17,18,22,20)(19,24,21,23)(25,26,30,31)(27,32,29,28)(2,4)(6,7)(9,10)(11,15)(12,13)(14,16)(17,19,22,21)(18,23,20,24)(25,27,30,29)(26,28,31,32)(2,4)(3,8)(10,13)(14,15)(19,21)(23,24)(25,28,30,32)(26,27,31,29)(1,3,5,8)(2,6,4,7)(9,10)(11,14)(12,13)(15,16)(17,20,22,18)(19,24,21,23)(25,26)(27,28)(29,32)(30,31)(1,4,5,2)(3,6,8,7)(9,11)(10,14)(12,16)(13,15)(17,21,22,19)(18,23,20,24)(25,29,30,27)(26,28,31,32)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.