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