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