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