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