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