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