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