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