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