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