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