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