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