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