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