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