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