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