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