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