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