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