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