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