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