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