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