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