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