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