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