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