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