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