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