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