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