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