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