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)(17,18,22,21)(19,23,25,27)(20,24,28,29)(26,30,31,32)(33,34,39,43)(35,44,47,38)(36,40,46,41)(37,42,45,48)(1,2)(3,9)(4,8)(5,6)(7,11)(10,15)(12,13)(14,16)(17,19)(18,23)(20,26)(21,27)(22,25)(24,30)(28,31)(29,32)(33,35)(34,38)(36,45)(37,46)(39,47)(40,42)(41,48)(43,44) involution — undirected(2,6)(4,13)(7,9)(10,16)(19,25)(20,28)(23,27)(24,29)(33,36,39,46)(34,40,43,41)(35,45,47,37)(38,42,44,48)(1,2)(3,9)(4,8)(5,6)(7,11)(10,15)(12,13)(14,16)(17,20,22,28)(18,24,21,29)(19,26,25,31)(23,30,27,32)(33,36)(34,41)(35,45)(37,47)(38,48)(39,46)(40,43)(42,44)(1,3,5,11)(2,7,6,9)(4,10,13,16)(8,14,12,15)(17,21,22,18)(19,27,25,23)(20,24,28,29)(26,30,31,32)(33,37,39,45)(34,42,43,48)(35,46,47,36)(38,40,44,41)(1,4,5,13)(2,8,6,12)(3,10,11,16)(7,14,9,15)(17,19)(18,23)(20,26)(21,27)(22,25)(24,30)(28,31)(29,32)(33,38)(34,35)(36,48)(37,40)(39,44)(41,45)(42,46)(43,47)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.