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