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