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