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