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