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