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