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