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