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