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