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