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