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