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