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