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