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