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