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