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