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