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