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