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