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