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