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