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