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)(35,38)(36,45)(37,40)(39,42)(41,44)(43,47)(46,48) involution — undirected(1,2)(3,7)(4,8)(5,6)(9,10)(11,14)(12,13)(15,16)(17,18,22,20)(19,23,26,27)(21,24,29,28)(25,30,31,32)(33,35)(34,38)(36,46)(37,43)(39,44)(40,47)(41,42)(45,48)(3,9)(4,12)(7,10)(8,13)(18,20)(21,29)(23,27)(25,31)(33,36,39,37)(34,40,42,45)(35,43,44,46)(38,48,41,47)(1,2)(3,10)(4,8)(5,6)(7,9)(11,16)(12,13)(14,15)(17,19,22,26)(18,23,20,27)(21,25,29,31)(24,30,28,32)(33,37,39,36)(34,40,42,45)(35,43,44,46)(38,47,41,48)(1,3)(2,7)(4,11)(5,9)(6,10)(8,14)(12,15)(13,16)(17,20,22,18)(19,23,26,27)(21,28,29,24)(25,30,31,32)(33,38,39,41)(34,35,42,44)(36,47,37,48)(40,46,45,43)(1,4,5,12)(2,8,6,13)(3,11,9,15)(7,14,10,16)(17,21)(18,24)(19,25)(20,28)(22,29)(23,30)(26,31)(27,32)(33,35)(34,41)(36,46)(37,43)(38,42)(39,44)(40,48)(45,47)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.