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