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