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