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