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