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