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