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