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