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