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