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