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