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