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)(17,18,23,30,22,26,21,25)(19,24,27,31,28,32,20,29)(2,6)(4,14)(7,10)(8,9)(11,12)(15,16)(17,19)(18,24)(20,21)(22,28)(23,27)(25,29)(26,32)(30,31) involution — undirected(1,2)(3,7)(4,8)(5,9)(6,14)(10,11)(12,16)(13,15)(17,20)(18,24)(19,21)(22,27)(23,28)(25,31)(26,32)(29,30) involution — undirected(1,3,5,13)(2,7,9,15)(4,12,14,11)(6,10,8,16)(17,21,22,23)(18,25,26,30)(19,27,28,20)(24,31,32,29)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.