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