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