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