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