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