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