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