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