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