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