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