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)(17,18,23,25)(19,24,27,31)(20,22,29,32)(21,26,28,30)(34,38)(36,44)(39,41)(42,48)(2,7)(4,13)(8,11)(10,14)(17,19,23,27)(18,24,25,31)(20,28,29,21)(22,30,32,26)(33,34)(35,41)(36,40)(37,38)(39,43)(42,47)(44,45)(46,48)(2,7)(3,12)(9,16)(10,14)(18,25)(19,27)(20,29)(26,30)(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)(17,20)(18,22)(19,28)(21,27)(23,29)(24,30)(25,32)(26,31)(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)(17,21,23,28)(18,26,25,30)(19,29,27,20)(22,24,32,31)(33,35,37,43)(34,39,38,41)(36,42,44,48)(40,46,45,47)(1,5,6,15)(2,10,7,14)(3,9,12,16)(4,8,13,11)(17,22)(18,20)(19,30)(21,31)(23,32)(24,28)(25,29)(26,27)(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.