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