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