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