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