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