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