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