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