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