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