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