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