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