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