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