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