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