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