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