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