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