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