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