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