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