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