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