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