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