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