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