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