One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,11)(4,8)(5,10)(6,9)(7,13)(12,14)(15,16)(17,18)(19,21)(20,28)(22,26)(23,25)(24,30)(27,29)(31,32)(33,34)(35,41)(36,39)(37,40)(38,43)(42,47)(44,46)(45,48) involution — undirected(1,3,6,13)(2,7,9,11)(4,12,10,16)(5,14,8,15)(17,19)(18,23)(20,27)(21,26)(22,25)(24,29)(28,31)(30,32)(33,35,37,43)(34,38,40,41)(36,44,45,42)(39,47,48,46)(1,4,6,10)(2,8,9,5)(3,12,13,16)(7,15,11,14)(17,20,22,30)(18,24,26,28)(19,27,25,32)(21,31,23,29)(33,36,37,45)(34,39,40,48)(35,42,43,44)(38,46,41,47)(2,9)(4,10)(7,11)(12,16)(17,21,22,23)(18,25,26,19)(20,29,30,31)(24,27,28,32)(34,40)(38,41)(39,48)(46,47)(3,13)(7,11)(12,16)(14,15)(18,26)(19,25)(24,28)(27,32) involution — undirected(1,5,6,8)(2,10,9,4)(3,14,13,15)(7,16,11,12)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.