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