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