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)(17,18,22,27,23,28,32,26)(19,29,21,24,25,20,30,31)(1,2,4,7,5,8,12,9)(3,11,13,16,14,6,15,10)(17,19,22,21,23,25,32,30)(18,24,26,29,28,31,27,20)(1,2)(3,6)(4,7)(5,8)(9,12)(10,13)(11,14)(15,16)(17,20,23,29)(18,25,28,19)(21,26,30,27)(22,24,32,31)(1,3,12,15,5,14,4,13)(2,6,9,16,8,11,7,10)(17,21,22,25,23,30,32,19)(18,20,26,24,28,29,27,31)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.