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