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