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