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