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