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