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