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