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