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