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