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)(19,21)(20,28)(22,24)(23,30)(25,27)(26,29)(31,32)(1,2)(3,6)(4,7)(5,8)(10,15)(11,12)(17,19,22,27)(18,21,24,25)(20,26,30,32)(23,31,28,29)(1,3)(2,5)(4,8)(6,7)(9,11,14,12)(10,16,15,13)(17,18,22,24)(19,25,27,21)(20,23,30,28)(26,29,32,31)(3,8)(5,6)(9,12,14,11)(10,13,15,16)(17,18)(19,25)(20,23)(21,27)(22,24)(26,29)(28,30)(31,32)(1,2)(3,5)(4,7)(6,8)(9,13)(10,11)(12,15)(14,16)(17,20)(18,23)(19,26)(21,31)(22,30)(24,28)(25,29)(27,32) involution — undirected(1,3)(2,6)(4,8)(5,7)(17,21,22,25)(18,19,24,27)(20,29,30,31)(23,32,28,26)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.