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