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