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