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