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