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