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