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