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