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