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