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