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