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