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