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