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