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