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