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