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