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