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