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