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