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