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