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