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