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