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