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