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