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