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)(18,22)(23,28)(24,29)(30,32)(33,34,39,44)(35,40,46,48)(36,38,43,41)(37,42,45,47)(2,7)(3,10)(9,12)(11,16)(19,25)(23,28)(26,31)(30,32)(33,35,39,46)(34,40,44,48)(36,37,43,45)(38,42,41,47)(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,13)(14,16)(17,18)(19,23)(20,24)(21,22)(25,28)(26,30)(27,29)(31,32)(33,36,39,43)(34,41,44,38)(35,45,46,37)(40,42,48,47)(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,13)(14,16)(17,19)(18,23)(20,26)(21,25)(22,28)(24,30)(27,31)(29,32)(33,35)(34,40)(36,45)(37,43)(38,47)(39,46)(41,42)(44,48) involution — undirected(1,4,6,14)(2,9,7,12)(3,11,10,16)(5,13,8,15)(17,18)(19,23)(20,24)(21,22)(25,28)(26,30)(27,29)(31,32)(33,37,39,45)(34,42,44,47)(35,43,46,36)(38,40,41,48)(1,5,6,8)(2,3,7,10)(4,13,14,15)(9,11,12,16)(17,20,21,27)(18,24,22,29)(19,26,25,31)(23,30,28,32)(33,38,39,41)(34,43,44,36)(35,42,46,47)(37,40,45,48)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.