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