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)(11,13)(12,14)(15,16)(17,18,21,23)(19,25,28,30)(20,26,22,24)(27,31,29,32)(2,5)(6,8)(9,11)(10,13)(12,15)(14,16)(18,23)(24,26)(25,30)(31,32) involution — undirected(11,15)(13,16)(18,24)(20,22)(23,26)(25,31)(27,29)(30,32) involution — undirected(11,15)(13,16)(17,19)(18,25)(20,29)(21,28)(22,27)(23,30)(24,31)(26,32) involution — undirected(1,3,4,7)(2,6,5,8)(10,14)(13,16)(17,20,21,22)(18,26,23,24)(19,27,28,29)(25,31,30,32)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.