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