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