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